656627703223 has 2 divisors, whose sum is σ = 656627703224. Its totient is φ = 656627703222.

The previous prime is 656627703161. The next prime is 656627703287. The reversal of 656627703223 is 322307726656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 656627703223 - 2²⁹ = 656090832311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (656627703923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328313851611 + 328313851612.

It is an arithmetic number, because the mean of its divisors is an integer number (328313851612).

Almost surely, 2^656627703223 is an apocalyptic number.

656627703223 is a deficient number, since it is larger than the sum of its proper divisors (1).

656627703223 is an equidigital number, since it uses as much as digits as its factorization.

656627703223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3810240, while the sum is 49.

The spelling of 656627703223 in words is "six hundred fifty-six billion, six hundred twenty-seven million, seven hundred three thousand, two hundred twenty-three".